<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
		<style type="text/css">
			body {
				margin: 0;
			}
			.wrap {
				width: 100%;
				height: 768px;
				background-image: url(../../img/xiyou/xybg.jpg);
				animation: bg 150s linear infinite ;
				position: relative;
			}
			ul {
				width: fit-content;
				margin: 0 ;
				padding: 0;
				list-style: none;
				display: flex;
				position: absolute;
				bottom:50px;
				left: 50%;
				transform: translateX(-50%);
				align-items: flex-end;
			}
			ul li {
				width: 185px;
				height: 185px;
			}
			ul li:nth-child(1) {
				background-image: url(../../img/xiyou/west_01.png);
				animation: run 1s infinite steps(8);
			}
			ul li:nth-child(2) {
				background-image: url(../../img/xiyou/west_02.png);
				animation: run 1s infinite steps(8);
			}
			ul li:nth-child(3) {
				
				background-image: url(../../img/xiyou/west_03.png);
				background-position: 0 0;
					animation: run1 1s infinite steps(8);
			}
			ul li:nth-child(4) {
				background-image: url(../../img/xiyou/west_04.png);
				animation: run2 1s infinite steps(8);
			}
			@keyframes bg{
				
				to{
					background-position:1920px 0 ;
				}
			}
			@keyframes run {
				
				to{background-position:-1600px 0; }
			}
			@keyframes run1 {
				
				to{background-position:-1360px 0; }
			}
			@keyframes run2 {
				
				to{background-position:-1680px 0; }
			}
		</style>
	</head>
	<body>
		<div class="wrap">
			<ul>
				<li></li>
				<li></li>
				<li></li>
				<li></li>
			</ul>
		</div>
	</body>
</html>
